Coregas Lascut Speed: A Smarter Assist Gas for Faster, Cleaner Fibre Laser Cutting

As fibre laser cutting technology continues to advance, manufacturers are demanding more from every part of the process - including assist gases. Higher kilowatt laser sources are enabling faster cutting and thicker material capability, but traditional assist gas options can create limitations in speed, cut quality, or post-processing time.

Lascut Speed has been developed specifically to address these challenges when cutting carbon steel with fibre laser machines.

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What Is Lascut Speed?

Lascut Speed is a ready-to-use, pre-mixed assist gas that combines the beneficial properties of oxygen and nitrogen into a single optimised solution. Rather than choosing between speed or cut quality, Lascut Speed delivers both - without the need for additional equipment or complex gas blending systems.

The result is a highly efficient assist gas designed to maximise productivity while maintaining excellent cut quality across a wide range of material thicknesses and laser power levels.

Faster Cutting Without Compromising Quality

One of the standout benefits of Lascut Speed is its cutting speed. By leveraging nitrogen’s ability to significantly increase cutting speed, Lascut Speed can achieve 250–500% faster cutting speeds compared to traditional oxygen cutting on carbon steel.

At the same time, the controlled oxygen content helps maintain the cut quality typically associated with oxygen-assisted cutting. This balance allows operators to take full advantage of modern high-power fibre lasers without the common drawbacks of using pure nitrogen on carbon steel.

Cleaner Cuts, Less Post-Processing

Beyond speed, Lascut Speed delivers tangible quality advantages:

• Low dross levels

• Reduced oxide on cut faces

• Cleaner edge finish

Unlike conventional oxygen cutting, where oxide scale often requires additional cleaning before welding or painting, parts cut with Lascut Speed are typically ready for welding and painting straight off the machine. This significantly reduces post-cut finishing time and helps streamline downstream processes.

Designed for Modern Fibre Laser Machines

Lascut Speed works in tandem with today’s fibre laser cutting technology and has demonstrated strong performance even on 6kW fibre laser machines, with increasing benefits as laser power increases.

Many laser cutting machine OEMs are now configuring their machines with mixed-gas cutting capability as standard, often via a third assist gas inlet. Where a third inlet is not available, alternative connection solutions can be implemented to ensure compatibility.

Cost-Effective and Easy to Implement

Because Lascut Speed is supplied as a pre-mixed and packaged solution, there is no requirement for additional gas mixing equipment or system upgrades. This makes it particularly attractive for small to medium laser cutting operations, while still delivering substantial productivity gains for high-volume manufacturers.

Supply options are available to suit different operational needs - from 12-pack cylinder solutions for immediate implementation through to bulk gas systems for larger-scale, high-consumption environments.

Maximising the Value of Your Laser Cutting Investment

With fibre laser machines becoming faster, more powerful, and more capable, optimising assist gas selection is a critical step in maximising return on investment. Lascut Speed enables manufacturers to:

• Increase throughput

• Maintain or improve cut quality

• Reduce post-processing time

• Improve overall workflow efficiency

At Laser Machines, we work closely with industry-leading gas solutions to help our customers get the most from their laser cutting systems. Lascut Speed is a powerful example of how the right assist gas can unlock the full potential of modern fibre laser technology.

If you’d like to learn more about using Lascut Speed with your laser cutting machine, or discuss compatibility with your current setup, feel free to get in touch with the Laser Machines team.